Sash operating and locking mechanism.



R. H. JONES. BASH OPERATING AND LOCKING MECHANISM.

APPLICATION FILED JAN.10, 1908.

Patented July 20, 1909.

Enoenl'oz R6666 H170 "Q3,

1V: in zoom .invention being to provide simple and-re liable mechanism for raising and lowering ordinary window sashes and securely locking invention a plied thereto.

anncn H. JONES, or 'rUsTIN, MICHIGAN.

sasn OPERATING Am) nocxme mncmmsm.

Patented July 20, 1909.

To all whom it may concern:

Be it known that I, Rnnon H. JONES, a citizen of the United States, residing at Tustin, in the county of Osceola and State-of Michigan, have invented new and useful Imparovements in Sash Operating and Looking echanism, of which the following isa specification'.

This invention relates to sash operating and'locking mechanism, the object of the the sameat any point of elevation desired, the operating mechanism for raising and lowering the sashes forming also part of the locking mechanism.

A further object of the invention is to so construct and arrange the sash operating and locking mechanism that the same may not be tampered with by unauthorized persons.

-With the above and other objects in view, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings :Figure 1 is a front elevation of awindow showing the Fig. 2is a side or edge view 0 the same Fi 3 1s a horizontal cross .section taken on the hne 33 of Fig. 1.

- tional VIEW on Fig. 4'is a broken elevation ofthe window frame and easing, showing the fastening escutcheon plate and a portion of the operating and locking mechanism. Fi 5 is a sec-' the line 5- 5 of ig. 1, showing more clearly the slots in the opposite sides of the'housing and the latch lever operating therein.

Referring to the drawings, 1 designates a window frame or casing of any suitable con+ struction, 2 the u per sash and3 the lower sash, said sashes eing mounted to slide up and down in the usual manner.

In carrying out the present invention, each of the sashes is provided in one of its side edges with a groove or longitudinal recess 4 in which is secured a rack bar 5 the teeth of which are thereby contained within the plane of the side edge of the sash, the two sashes operating between the usual stops 6 and parting beads 7. L Atone side of the frame, there is provided a pair'of spur gear wheels '8 and 9 arranged at different elevations and on opposite sides ofthe horizontal line of the meeting railsof the lower sash, the cran the sashes as shown in Fig. 1, the u per wheel 8 meshing with the teeth of the in aid rack 4 of the 11 per sash and the lower wheel 9 meshingwit the teeth of the'inlaid rack of the lower sash. Each of said wheels is mounted in a flanged metal housing 10 provided with a suitable base 11 whereby it is secured by suitable fasteners such as screws-to the side of the window frame or casing. The housing 10 also forms bearings for rojects toward the front of the window rame and isprovided with a crank socket 13 the socket of which is formed in the front end thereof adapting it to receive the squared inner end of a detachable supporting crank 14. The housing 10 is also provided in its opposite side walls with slots 15 in which works one arm of a latch lever 16 which projects through the front of the window frame, the other or shorter and outwardly projecting arm thereof constituting a depresslble fin er or thumb piece 17, which is preferably 0- cated just above the lane of the operating crank 14 as shown in Figs. 1, 2 and 4.

At the front, the window frame or casing is provided with a face plate or escutcheon 18 having openings 19 for the latch levers 16 and other openings 20 into which the operating crank 14 is insertible in order that t e inner squared end thereof may be connected to and disconnected from the crank socket 13 of either ear wheel spindle 12. Just opposite and in liorizontal a 'nement with each of the spur gear wheel spindles 12 there is arranged a bearing roller 21 against which the adjacent side rail of the sash bears in its up and down movement, said roller serving to reventthe sash from becoming clam e or jammed as'it is raised and lowered y the mechanism previously described.

"In 0 eratlon, the crank 14 is inserted into the soclret of the upper spindle and turned to the left to lower the up er sash. Toraise is inserted in the a spindle 12 which n s'ra'rns PATENT OFFICE. 4

crank ,socket of the lower spindle and turned to the right.- Before turning the crank to raise or lower either of the sashes, the latch lever 16 is operated so as to throw the rear end thereof out of interlocked en agement with .its respective gear wheel 8 an 9, as the After the sash has been raised prevents the sash from being raised or sash ma lowered. It will be apparent that either be locked at any point whatever in the who e length of its up and down movement.

Having thus described'the invention, what is claimed as new, is

In combination with a window comprising a casing, upper and lower sliding sashes, each sash having a vertically arranged rack bar in the edge facing the adjacent j amb, gear wheels 1n mesh with the respective rack bars, a flanged housing for each gear wheel and slots in the opposite Walls thereof, spindles for the gear wheels mounted in, the walls of the housing, crank sockets fitted to the projecting ends of the spindles and arranged wholly within the j amb of the window frame,

transversely disposed latch levers pivoted near their outer ends to the Windowframe and having their inner ends passed through the slots of the respective flanged housings, and adapted to engage the gear Wheels, a plate fitted to the window j amb and having slots to receive the projecting ends of the latch levers, and having openings opposite the crank sockets, and a crank adapted to be fitted to either of the said crank sockets.

In testimony whereof I affix my signature in presence of two witnesses.

REEOE H. JONES;

Witnesses MAE ANDERSON, MILDRED LovENE. 

